Designing Clinical Research,Designing Clinical Research,Designing Clinical Research: Hulley, Stephen B., Cummings, Steven R., Browner, Warren S., M.D., Grady, Deborah G., M.D., Newman, Thomas B., M.D.: ,An overview of clinical research: the lay of the land - The Lancet,Designing Clinical Research | The International Society of Blood Transfusion (ISBT)